Prevalence of Toxoplasma gondii antibodies in nine populations of dairy goats: compared titers using modified direct agglutination and indirect hemagglutination.
In a convenience survey of dairy goats on 9 farms in Tennessee, Kentucky, and Georgia, 54 of 99 females were positive for antibodies to Toxoplasma gondii as measured by the indirect hemagglutination test (IHA). Two of 9 males were also positive. Positive goats were found on all farms. The percentage of positive does increased from 55% to 65% when the sera were titered a second time by modified direct agglutination (MDAT). This difference was not statistically significant, indicating that both IHA and MDAT are reliable epidemiological tools.
Patton
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Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071.
Johnson
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SS
Puckett
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K
D000372:Agglutination Tests; D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood*; D005260:Female; D005845:Georgia / Q000453:epidemiology; D015511:Goat Diseases / Q000453:epidemiology*; D006041:Goats; D006386:Hemagglutination Tests; D006801:Humans; D007629:Kentucky / Q000453:epidemiology; D008297:Male; D015995:Prevalence; D013714:Tennessee / Q000453:epidemiology; D014122:Toxoplasma / Q000276:immunology*; D014124:Toxoplasmosis, Animal / Q000453:epidemiology*
D000913:Antibodies, Protozoan